North Zulch Mud, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 1.43 ppb (monitoring period 2024-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About North Zulch Mud
North Zulch Mud serves about 1,800 people through 721 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Madison County, Texas. EPA system ID: TX1570004; phone on file: 936-399-4700. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 1.43 ppb from 0 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for North Zulch Mud is 1.43 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.43 ppb |
| 2023 | 0 (not detected) |
Against other Texas systems
Of the 4,447 Texas systems with a lead result, the median latest reading is 0.28 ppb; 15 are over 15 ppb right now and 202 have gone over at some point. North Zulch Mud's 1.43 ppb sits at the 74th percentile in Texas and the 63rd nationally (higher means more lead).
Nearby utilities
6 other systems share Madison County; 0 of them have a higher latest lead result than North Zulch Mud. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Madisonville | 6,111 | 0 (not detected) |
| Tdcj Ferguson Unit | 3,043 | 0 (not detected) |
| High Prairie Water Supply Corp | 1,476 | 0 (not detected) |
| Canaan Community Mhp | 420 | 1.1 ppb |
| City Of Midway | 173 | 0 (not detected) |
| Osr Estates Subdivision | 29 | - |
What to do in your house
Test your own tap with a certified lab first-draw sample; North Zulch, TX may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask North Zulch Mud whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.